Heba Allah Mohamed Soliman Abdelsadek <br/><br/>
A trial for production of bivalent vaccine of riemerella anatipestifer and escherichia coli in ducks /  
 محاولة لانتاج لقاح ثنائى للريميريلا اناتيبستفير و الايشيريشيا كولاى فى البط 
Heba Allah Mohamed Soliman Abdelsadek ; Supervised Jakeen Kamal Abdelhaleem Eljakee , Heba Naim Mohamed Deif , Amal Mostafa Elsawah 
 - Cairo :   Heba Allah Mohamed Soliman Abdelsadek ,   2019 
 - 193 P. :   charts , facsimiles ;   25cm  
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Microbiology 
<br/><br/> The  present  work  was planned to study the immune response of ducks vaccinated with locally  prepared bivalent  inactivated  vaccine  of  R. anatipestifer and  E.coli  adjuvanted  with  Montanide ISA71. One hundred (100) Pekin ducklings one day-old apparently healthy were divided  into  five  groups,  the  1st group  was  vaccinated  with R. anatipestifer vaccine, the 2nd group  was  vaccinated  with  E.coli vaccine, the  3rd group was  vaccinated  with  bivalent  E.coli- R. anatipestifer vaccine,  the 4th group and  the  5th group  were  kept  unvaccinated  as a control group.The  prepared vaccines were  evaluated  by evaluation  of  the  humoral  immunity by indirect  hemagglutination and  ELISA  techniques.The potency of the vaccines was evaluated by the challenge test.The results showed that bivalent inactivated vaccine of E.coli- R. anatipestifer adjuvanted with Montanide ISA71 induced high and long duration of antibody response and significant protection against the challenge with virulent strains of R. anatipestifer and E.coli in vaccinated ducks 
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<br/><br/><label>Subjects--Index Terms: </label>Ducks E.coli  R .anatipestifer